Night of Shadows

When notorious gunslinger Stephen Fuller came to Cedar Rapids, it became Anna Lland's job, as matron of the town jail, to see to it that he didn't create any trouble in town

Long Synopsis:

When notorious gunslinger Stephen Fuller came to Cedar
Rapids, it became Anna Toland's job, as matron of the
town jail, to see to it that he didn't create any trouble in
town before he left--and that he left as soon as possible.
But by nightfall a man was dead, Fuller was on the run,
and everyone was sure the gunslinger was guilty.
Everyone except Anna. No one in town would listen to
what a woman had to say about murder or the law, so
Anna had to set out on her own to find the real killer. But
before she could do that, she would uncover shocking,
long-buried secrets that threatened to tear the quiet
town apart.